Lucy Hawking talks to Alok Jha, James Randerson and Bobbie Johnson about how to explain black holes to 8 year olds. Her new kids book, jointly written with father Stephen Hawking attempts to do just that - and spin a good yarn about a boy called George at the same time.
We ask whether the Tolkienesque scientific tussle over the identity of the fossilised "hobbit" discovered on a remote Indonesian island in 2003 can at last be put to bed. New evidence from the hobbit's wrist bones suggests that it really is a new species and not a pygmy with a brain-shrinking disease.
The London Science Museum's new director Prof Chris Rapley talks about his plans for the museum and how he helped Al Gore rock Antarctica. And we ask whether it is right that the UK police's DNA database has the profiles of innocent people on it.